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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 22, Iss. 21 — Nov. 1, 1983
  • pp: 3457–3464

Incident photometry: specifying stimuli for vision and light detectors

Thorny H. Nilsson  »View Author Affiliations


Applied Optics, Vol. 22, Issue 21, pp. 3457-3464 (1983)
http://dx.doi.org/10.1364/AO.22.003457


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Abstract

Photometry has traditionally been conceptualized primarily in terms of measuring light sources. However, all units of photometry can also refer to measurements of light as it is received. A description of how to measure incident light is developed from the basis that light forming an image is just the reverse of light emitted from a source. The incident approach to photometry reveals how to derive luminance from a measure of illuminance and how to correctly calculate the illumination of an image. It is further recommended that photometric specification of incident light be accompanied by a description of its effectiveness relative to the receiver threshold.

© 1983 Optical Society of America

History
Original Manuscript: November 6, 1982
Published: November 1, 1983

Citation
Thorny H. Nilsson, "Incident photometry: specifying stimuli for vision and light detectors," Appl. Opt. 22, 3457-3464 (1983)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-22-21-3457

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